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Posted to issues@fluss.apache.org by "fresh-borzoni (via GitHub)" <gi...@apache.org> on 2026/10/12 07:28:23 UTC
[I] [lake] Fail fast when two plugins register the same lake format [fluss]
fresh-borzoni opened a new issue, #4601:
URL: https://github.com/apache/fluss/issues/4601
### Search before asking
- [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar.
### Description
`LakeStoragePluginSetUp` uses the first lake plugin whose identifier matches the configured format, so if two plugins register the same format (for example the Iceberg 1.10 and 1.12 plugins installed side by side), one is picked silently depending on load order. It should fail with an error naming both, like `ConfigProviders` does for duplicate config providers.
### Willingness to contribute
- [ ] I'm willing to submit a PR!
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Re: [I] [lake] Fail fast when two plugins register the same lake format [fluss]
Posted by "polyzos (via GitHub)" <gi...@apache.org>.
polyzos commented on issue #4601:
URL: https://github.com/apache/fluss/issues/4601#issuecomment-6139486675
@Hachiman566 I see it can affect the other tickets, so please go ahead and thank you for your interest 🙌 Assigned to you.
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Re: [I] [lake] Fail fast when two plugins register the same lake format [fluss]
Posted by "polyzos (via GitHub)" <gi...@apache.org>.
polyzos closed issue #4601: [lake] Fail fast when two plugins register the same lake format
URL: https://github.com/apache/fluss/issues/4601
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Re: [I] [lake] Fail fast when two plugins register the same lake format [fluss]
Posted by "polyzos (via GitHub)" <gi...@apache.org>.
polyzos commented on issue #4601:
URL: https://github.com/apache/fluss/issues/4601#issuecomment-6444264852
Hi @Hachiman566, Is there any progress here, because we need to push this.
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Re: [I] [lake] Fail fast when two plugins register the same lake format [fluss]
Posted by "Hachiman566 (via GitHub)" <gi...@apache.org>.
Hachiman566 commented on issue #4601:
URL: https://github.com/apache/fluss/issues/4601#issuecomment-6445463623
Hi @polyzos, I’ve opened draft PR #4916 for this issue. The fix and targeted tests are ready. I’ve noted one question about duplicate detection across PluginManager and SPI for review. CI is awaiting maintainer approval.
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Re: [I] [lake] Fail fast when two plugins register the same lake format [fluss]
Posted by "Hachiman566 (via GitHub)" <gi...@apache.org>.
Hachiman566 commented on issue #4601:
URL: https://github.com/apache/fluss/issues/4601#issuecomment-6134318868
I’d like to work on this if it’s still available. I propose detecting a second match for the requested lake format and reporting the format and both implementation classes, following ConfigProviders. I’ll preserve the existing wrapper and no-match behavior, with tests for duplicates within and across PluginManager/SPI.
Should the same implementation discovered through both sources also count as a conflict? I’d avoid deduplicating by class name because separate classloaders may load different versions with the same name.
Does this scope look right? If so, could you assign the issue to me?
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